1. Department of Paediatric Dentistry, Medical University of Lublin, 20-059 Lublin, Poland
2. Department of Oral Surgery, Medical University of Lublin, 20-059 Lublin, Poland
3. Department of Paediatric Orthopaedics and Rehabilitation, Medical University of Lublin, 20-093 Lublin, Poland
4. Department of Dental Prosthetics, Medical University of Lublin, 20-059 Lublin, Poland
5. Independent Laboratory of Behavioral Studies, Medical University of Lublin, 20-059 Lublin, Poland